Diff and tranny change due?

mousitch · 04-16-2012, 01:43 PM

Got a diff and tranny fluid change next weekend. Warranty out by August but have over 27000 on both.Was going to change out with RP(tranny) and RL(diff). Both were excellent in the vert, with the RP really making a difference in shifting.

Do it now or wait for warranty to run out? What do ya think?

tekmoe · 04-16-2012, 03:27 PM

Do it! I did mine over a year ago, have close to 15k miles on the new fluid. Did the same thing you are planning on doing, RP in the tranny and RL in the diff. No issues here.

BMW Maniac · 04-17-2012, 12:46 AM

I'm planning to use RL in both in a couple of months.

jmillet · 04-20-2012, 06:57 PM

I went with RL 85W-140 in the diff and a 50/50 blend of RL MTL and MT-90 in the tranny.
My Z4MC sees a lot of track time

04-16-2012, 01:43 PM	#1
mousitch Dark Sider Drives: 2008 Space Gray Z4MC Join Date: Jan 2010 Location: Missouri Posts: 1,659 iTrader: (11) Garage List 2008 Z4M Coupe [0.00] 2006 Z4M roadster [0.00] 2005 BMW 2.5 Z4 [0.00]	Diff and tranny change due? Got a diff and tranny fluid change next weekend. Warranty out by August but have over 27000 on both.Was going to change out with RP(tranny) and RL(diff). Both were excellent in the vert, with the RP really making a difference in shifting. Do it now or wait for warranty to run out? What do ya think? __________________ 2008 Space Grey M Coupe-RPI Scoop-Gruppe M CAI-Eisenmann Race Cans-RE X-pipe-ECU Remap-H&R Sport springs-Zeck CDV-Stock Gloss black powder coated wheels-LED Tekarbon Angel Eyes Project-Michelin Super Sports-Hardwired Escort 9500ix-BMW CCA Member-ST Louis Chapter
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04-17-2012, 12:46 AM	#3
BMW Maniac Second Lieutenant Drives: 2006 Interlagos Blue M Coupe Join Date: Jan 2009 Location: Louisville, KY Posts: 284 iTrader: (0)	I'm planning to use RL in both in a couple of months. __________________ 2006 /// M Coupe Interlagos Blue 1997 /// M3 Coupe Arctic Silver S2 (545rwhp/520rwtq) 1991 Alpine White 325i

04-20-2012, 06:57 PM	#4
jmillet Captain Drives: 2007 Z4 M Coupe Join Date: Aug 2007 Location: Seattle, WA Posts: 606 iTrader: (1) Garage List 2007, VIN LM08376, ... [4.50]	I went with RL 85W-140 in the diff and a 50/50 blend of RL MTL and MT-90 in the tranny. My Z4MC sees a lot of track time __________________ Jim Millet 2007 E86 Z4 M Coupe/ZPP Premium Package/Nav System/Heated Seats/HD Radio/CDV Delete/Strong-Strut/TCK DA Coil Over Suspension/500# front; 600# rear/TCK Camber-Caster Plates

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04-16-2012, 03:27 PM	#2
tekmoe Captain Drives: ///M Join Date: Nov 2010 Location: Texas Posts: 842 iTrader: (0)	Do it! I did mine over a year ago, have close to 15k miles on the new fluid. Did the same thing you are planning on doing, RP in the tranny and RL in the diff. No issues here.